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   Home   Help Search  
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Author Topic: Kenwood ts-830s  (Read 2691 times)
K0GWD
Member

Posts: 17




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« on: February 17, 2008, 02:38:31 PM »

Hello every one:
I have recently purchased a TS-830S and it has a problem in that it has no transmit output. Here is what I have checked. It has 800+ HV  Bias is 60ma
that is it. No drive or responce in plate tuning or load I have checked the filiments in the driver and the finals they all show ok with an ohm meter.
Any help would be appreciated. Thanks George K0GWD
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KB1LKR
Member

Posts: 1897




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« Reply #1 on: February 17, 2008, 08:12:49 PM »

you might look at DL9AI's TS-830 Survival Guide... http://www.geocities.com/om6523/

Is the driver tube 12BY7A(?) good?
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KA5N
Member

Posts: 4380




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« Reply #2 on: February 18, 2008, 06:08:13 AM »

Remember you have to tune in CW mode (in tune mode you have reduced output and you may have very low meter readings).  If you try to tune in SSB mode you get nothing unless you speak into the mike.  The 12BY7 may be bad or have no plate or screen voltage.  The finals are probably OK since you getting resting current (60 ma).  Of course there are dozens of possible problems.  Does the rig receive OK and does the digital readout work correctly, etc., etc.?
Allen
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KE4DRN
Member

Posts: 3746




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« Reply #3 on: February 18, 2008, 09:43:03 PM »

hi George,

I see you have posted to the yahoo kenwood forum

http://groups.yahoo.com/group/TS-520_820_530_830/

since the radio is used, it could have been in
storage a long time.

a good cleaning of all the band switches is in order,
along with a few drops of oil for the fan in the final cage.  
Please check the screws on all the pc boards,
they can work loose over time and they are all common grounds.  Hand tight is just right.

Deoxit contact cleaner is one of the best things you can do to these fine older radios.

73 james
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K0GWD
Member

Posts: 17




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« Reply #4 on: February 19, 2008, 02:18:00 PM »

Hi James:
Thanks for the reply. Your help was instrumental in getting my old 530S up and going. Well I have become addicted to these old radios. The schamatic I have for the 830 is mostley unreadable. here is what I have done since I posted.I have blow'n out the insides with compressed air whoever owned this rig was a heavy smoker and all the silver parts inside are a gold color. I loosened and retightened all the screws in the rf board,left the rig on for about a half hour turned it off and felt the driver it was cold as a mackeral. also there is no visible sign that the heaters arte lighting up. The shield is off the tube. It looks to me like removing the RF board would be a real tough job. I have been considering taking the driver out of the 530 and putting it in the 830 but getting the metal shield back on is hard to do. I have ordered a new driver from Ken K4EAA
and should have it soon.Any thing else U can think of
would be appreciated Thanks George K0GWD
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K0GWD
Member

Posts: 17




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« Reply #5 on: February 19, 2008, 02:37:06 PM »

Hi Allen:
Thanks for the reply. Yes the reciever works great and the digital readout also is right on the money.
I have no means of testing the drivber. I have considered robbing the driver out of my 530s and that way i could eliminate wondreing about the driver.
Thanks George K0GWD
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KE4DRN
Member

Posts: 3746




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« Reply #6 on: February 19, 2008, 04:53:53 PM »

hi George,

could be poor contact on the tube, try
remove and insert again.  heater sw is on ?

don't worry about the tube shield,
the radio will run just fine without it,
my 520 has one, the 530 and my project 520 do not.

go here for the manuals in pdf

http://www.radioamateur.eu/KENWOOD.html

I also like these fine tube radios,
my 520 was from an estate sale on ebay,
super clean and my elmer gave it a good testing
before I got my general.  These are great radios,
easy to understand the basics of radio and
work on them as parts can be replaced easy compared
to the modern radios.  


73 james


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WG8Z
Member

Posts: 306




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« Reply #7 on: February 22, 2008, 05:54:26 AM »

Common problem is the nylon coupler on the bandswitch,
 check that if your out of sync ain't gonna get squat
out of the finals.
 73
Wg8z
ts-820s
ts-830s
 the last of the real radios
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KE4DRN
Member

Posts: 3746




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« Reply #8 on: February 22, 2008, 04:23:21 PM »

hi greg,

yes, good place to check,
his driver tube is cold so he has to
get that driver glowing again.

73 james
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N0PHN
Member

Posts: 7




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« Reply #9 on: March 01, 2008, 03:07:44 AM »

hi
check out this link(http://www.dbeweb.com/Kenwood/)thi guy should be able to help yoy if anyone can.
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